[Rd] [External] SET_COMPLEX_ELT and SET_RAW_ELT missing from Rinternals.h

[iuke-tier@ey m@iii@g oii uiow@@edu]

The setter interface for atomic types is not yer implemented. It may
be some day.

Best,

luke

On Fri, 25 Jun 2021, Konrad Siek wrote:

> Hello,
>
> I am working on a package that works with various types of R vectors,
> implemented in C. My code has a lot of SET_*_ELT operations in it for
> various types of vectors, including for CPLXSXPs and RAWSXPs.
>
> I noticed SET_COMPLEX_ELT and SET_RAW_ELT are defined in Rinlinedfuns.h but
> not declared in Rinternals.h, so they cannot be used in packages. I was
> going to re-implement them or extern them in my package, however,
> interestingly, ALTCOMPLEX_SET_ELT and ALTRAW_SET_ELT  are both declared in
> Rinternals.h, making me think SET_COMPLEX_ELT and SET_RAW_ELT could be
> purposefully obscured. Otherwise it may just be an oversight and I should
> bring it to someone's attention anyway.
>
> I have three questions that I hope R-devel could help me with.
>
> 1. Is this an oversight, or are SET_COMPLEX_ELT and SET_RAW_ELT not exposed
> on purpose? 2. If they are not exposed on purpose, I was wondering why.
> 3. More importantly, what would be good ways to set elements of these
> vectors while playing nice with ALTREP and avoiding whatever pitfalls
> caused these functions to be obscured in the first place?
>
> Best regards,
> Konrad,
>
> 	[[alternative HTML version deleted]]
>
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-- 
Luke Tierney
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa                  Phone:             319-335-3386
Department of Statistics and        Fax:               319-335-3017
    Actuarial Science
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